Malicious PDF — malware analysis report

Static analysis result for SHA-256 bee9cf59449439a9…

MALICIOUS

PDF

55.4 KB Created: 2020-11-06 15:19:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 243e93ba9442b1bd456bf48696c7b894 SHA-1: ce6065655890c41965b08a655783bf565d4497e0 SHA-256: bee9cf59449439a92f122fc5ed1909f5ccceb794f15659aa73637a2137b342d1
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://trafficel.ru/strik?keyword=rehearsal+dinner+etiquette+menu PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368242/normal_5f97dac395fb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381536/normal_5f9c63ff07c64.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387699/normal_5f923e68bd757.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370762/normal_5fa2f24a953c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369158/normal_5f87f6bc60107.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449965/normal_5fa0d9dc7aa38.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366043/normal_5f87857edb331.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369520/normal_5f8a51850f13f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380392/normal_5f9b9512da5b3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/gafedupeba/application_of_computer_in_hospital_pharmacy.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/summer_academy_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/catalogue_schneider_automatisme_et_controle_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/pac-12_sports_news.pdfIn PDF document text
    • https://s3.amazonaws.com/watajive/80689496023.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6185 4972 bytes
SHA-256: 79c0d5f013d8d952013f94b6cc68f0ab53594cd16097b5e2950d1d4eebae81b2
font_01_sfnt_off00007220.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7220 6356 bytes
SHA-256: 17759b82d53bc275675a41339aa1eb3c5672cd329ea2528965208a4e1962e1e0
font_02_sfnt_off00008832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8832 10424 bytes
SHA-256: 7f1d814c74d10fcc4bcce17428fb57c39ecedb417775183e3c33a39ae44b1313
font_03_sfnt_off0000ac15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC15 16312 bytes
SHA-256: 028dbaa76d48ae99b02248bacea50134e27ed131f5dd39e25ac401de8961e19b
font_04_sfnt_off0000c1a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1A1 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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